Pitman connection for harvesting-machines.



C. DIOKHUTE. PITMAN CONNECTION FOR HARVESTING, MACHINES.

APPLICATION FILED DBO, 30,1912.

Patented May 20, 1913.

To all whom it may concern:

' object is to provide a connection of simple form which'will hold'the lubricantsecurely I and which may have its parts readily de- I displacement.

the crank disk, 2 is the crank pinand 3 a portion of the connecting rod or pitman.

-- crank pin. This boxing at one end is screw threaded internally to receive a gland 5 which is located between the end of the boxing and the face of the crank disk, the said therewith. The crank pin has a reduced .screw threaded end 8 receiving a nut 9, be-' I -crank pin a washer 11 is' clamped, this .5 .on the screw threadedreduced end of the v boxing so as to retain theboxing on thei and useful Improvements .in Pitman- Con-- iny connection, a portion of the pitman and tion. Fig. 4 is a detail view of the retaining qoples of this patent may he obtained'fcr UNITED STATES PATENT OFFICE.

ALBERT .C. DI CKHUTE, SHELBY, NEBRASKA.

PITMAN CONNECTION FOR HARVESTING-MACHINES.

Specification of Letters Patent.

Patented May 20, 1913.

Application filed December 30, 1912. Serial No. 739,395.

-'Be it known that I, ALBERT G. DioxHo'rE, a citizen of the United States, residing at Shelby, Nebraska, have invented certain new nections for Harvesting-Machines, of which the following is a specification.

My invention relates to the connection be tween the pitman of a mowing machine andthe crank pin on the crank disk, and the tached for supplying new lubricant, said parts, however, when attached in proper relation being held securely against accidental In the drawings Figure 1 is a plan view of a portion of the crank disk being illustrated. Fig. 2 is a longitudinal sectional View through my connection. Fig. 3 is a' view of the partsassembled, shown partially in secwasher.

In these drawings 1 indicates a portion of This connecting rod has journal pinsengaging an eye 3 formed in one piece with the boxing4, which is journaled on the gland having an opening through which the crank pin passes. The opening through the oxing is of a. diameter to receive the crank pin freely but without ,lost motion. The other end of the boxing is externally screw threaded at its shoulder portion 6 and within a cap portion 7, said cap portion en tirely inclosing the outer end of the crank pin and being of a size adapted tohold lubricant to keep the crank pin, supplied tween which and .the shoulder 10 of the washer being of suli'icient diameter to bear crank pin and prevent edgewise displacement.

All of the parts just-described are inclosed within the cap, before mentioned, which holds .the lubricant. The lubricant from this cap can pass along the crank pin, and for this purpose I prefer to form the washer with flat sides, leaving exposed at thesepoints the crevice between thecrank pin and the interior of the boxing.

In order to hold the gland against turning, -I-provide spring members 11' and 12 secured by screws to the exterior of the boxing and extending thence circumand the cap ferentially around the boxing part way, the

ends of these springs being turned outw'ardly to engage any one of a series of openings formed in the flanges of the cap and gland. These springs, at points near the screws, extend through openings in a log In combination with a crank pin having a threaded end, a boxing mounted thereon,

the boxing therewith at oneend, a cap for holding lubricant screw threaded into connection with the other end of the boxing,

the said cap inclosingthe threaded end of the crank pin, and spring locking members secured to the boxing, extending circumferentially part way about the same, the said gland and cap having a series of openings to receive the laterally bent ends of the said springs, substantially as described.

In testimony whereof, I afiix my signature in presence of two witnesses.

ALBERT C. DICKHUTE.

Witnesses:

JAMES MoGIMPsEY, Q'OsoAR OLSON.

live cents'each, by addressing the Commissioner of Patents, Waslflngtqn D. G,

-a gland screw threaded into connection with I 

